Electric-lamp hanger.



E. E. SGHELLENGER.

ELECTRIC LAMP HANGER.

APPLICATION rum) JUNE 10,1911.

Patented Apr. 23, 1912.

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E. E; SCHELLENGER.

ELECTRIC LAMP HANGER.

APPLICATION FILED JUNE 10, 1911.

1 24,029, Patented Apr.23, 1912.

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' bodying my invention.

UNITED STATES PATENT QFFICEE.

ELECTRIC-LAMP HANGER.

To all whom 2'25 may concern Be it known that I, ELMER E. SoHnLLEN- GER,a citizen of the United States, residing at Riverside, in the county ofRiverside and State of California, have invented new and usefulImprovements in Electric-Lamp Hangers, of which the following is aspecification.

The present invention relates to certain novel and useful improvementsin hangers for electric lamps and similar devices.

In the present instance, it is my purpose to provide a form of hangerwhich is in the nature of an improvement on my hanger for electric lampsforming the subject-matter of my co-pending application, Ser. No.588,991, filed October 25, 1910.

In carrying out my invention, it is my purpose to provide a hanger bymeans of which an electric lamp or other article may be readily andinstantly raised and lowered, and held in any convenient position ofadjustment.

Furthermore, I also aim to provide a hanger which will be simple in itsconstruction, and positive and efiicient in operation.

IVith the aboverecited objects and others of a similar nature in view,the invention consists in the construction, combination and arrangementof parts, set forth in and falling within the scope of the appendedclaim.

In the accompanying drawings :Figure 1 is a View in side elevation of ahanger em- Fig. 2 is a longitudinal sectional view. Fig. 3 is a verticallongitudinal sectional View taken on the line 3-3 of Fig. 2 and lookingin the direction of the arrows. Fig. 4: is an end view of the drum,showing the pawls for engaging the supporting shaft. Fig. 5 is a view ofone of the blanks for forming the cord engaging clip. Fig. 6 is a crosssectional View, taken on the line 66 of Fig. 2, looking in the directionof the arrow and showing the clip when bent into position for engagingthe cords.

Referring to the accompanying drawings in detail, the numerals 1 and 2indicate the duplicate conductor cables or lamp cords which areconnected to the lamps L. These cords are twisted at their upper andlower ends in the usual manner, and intermediate their length areseparated and spread to form an approximately oval-shaped opening, thecords leading over the oval-shaped Specification of Letters Patent.

Application filed June 10,

Patented Apr. 23, 1912.

1911. Serial No. 632,449.

crane 3 formed by the cheek plat-es 4 and 5. The cords are preventedfrom spreading and are held to the frame through the medium of a clip 0,the blank of which is shown in Fig. 5, while Fig. 6 shows the clip bentand in position for retaining the conductors 1 and 2 and the adjustingcord hereinafter referred to. This clip is formed of a blank comprisingthe platelike body portion 6 having the converging sides 7*? whichterminate in the spurs 88, while 9 and 10 indicate two parallel stripsthe upper strip 1.0 being longer than its companion 9. lVhen the clip isbent into the form shown in Fig. 6, the spurs 8'8 engage with theinsulation of the conductors to grip the same while the member 9 is bentinto a circular split ring, and the strip 10 bent into an approximatelyoval-shaped split band oppositely disposed to the ring 9 and de signedto embrace the conductors. In actual practice, I employ two of thesestrips, one at the top and one at the bottom of the frame around whichthe conductors extend, and said clips are preferably oppositelydisposed, as will be seen from the drawings.

Stationarily mounted in the frame 3 and extending between the cheekplates 1 and 5 is a shaft 11 upon which is mounted a drum 12, such drumbeing loose upon the shaft and is formed of the two side plates 13-13which converge at 14.-14 and are then eX- tended outward as at 15, or atthe periphery of the drum, these outwardly extending flanges 15 forminga groove 16 around the periphery of the drum for the reception of theadjusting cables or cords 17 and 18, the two plates forming the drumbeing secured in any desired manner, such as by bolts 19. l/Vithin thedrum is mounted a vertically arranged circular coiled spring 20, one endof which is secured to the shaft 11 at 22 while the other or outer endof the spring is connected at 23, to the disk 24: loose upon the shaftand having a hub 25 through which said shaft passes. The numeral 26designates a second vertically arranged coiled spring arranged on theopposite side of the disk from the spring 20 this circular coil spring26 being connected at 27 to the hub of the disk and at 28 to theadjacent face of the drum so that from the arrangement of the springsand the connections just described, it will be seen that a. completeconnection is made between the stationary shaft 11 and the drum.

The shaft 11 is provided near one end with oppositely disposed recessesor notches and 30 designed. to be engaged by the shouldered ends 31 andof the dogs 33 and pivoted to the adjacent outer face of the drum, theconstruction being similar to that used in connection with the ordinaryshade roller. The adjusting cords 17 and 18 are adapted to be coiledcircumferentially on the drum, the cord 17 being ttastened near thecenter of the drum at one end and is coiled toward one of the sideflanges of the drum, while the other or lower cord 18 is also fastenedto the drum and coiled toward the opposite flange, the tail end of thecord 17 being secured to a trip or supporting ring 33 connected to theconductors, while the tail end of the rope 18 is connected to the lampas at 34.

From the above description, taken in con nection with the accompanyingdrawings, the construction and operation of my invention will. bereadily apparent. Assuming that the major portion of the suspendingcords are uncoiled from the drum, and the lamp in a lowered position, ifit be desired to raise the lamp the latter is pulled downward a shortdistance to effect the disengagement between one of the dogs and theshaft 1%, and this being done the downward pull on the lamp is reducedsufficiently to permit the circular coil spring to rotate the disk anddrum. When the speed of rotation is sufficiently high the engaging endsof the dogs will swing outward by centrifugal force. As the lampapproaches the required height, the pull on the same is increased toovercome the action of the spring, whereupon the dogs will be permittedto drop back and engage with the notches in the shaft so that furthermovement of the rotating drum and disk willv be prevented and the lampheld in adjusted position.

It will be noted that I have provided 21 simple, convenient andellicient term of hanger which may be readily and easily operated tohold the lamp in any position of adjustment.

I wish it to be understood that the springs employed in connection withthe drum may be constructed of a flat steel band or strip, or may beformed of round wire oil? the proper stiffness and strength andfurthermore, any number of strings may be employed and mounted onebeside the other to increase the range of extension or contraction ofthe lamp cord.

I claim A device of the class described. comprising a frame adapted tobe positioned between and having cheek pieces to engage the conductors,the intermediate portions of said cheek pieces being spaced apart andsaid cheek pieces being provided with means to engage the conductors andbeing also provided with non-circular openings, a shaft connecting thecheek pieces and having non-circular ends secured in the openingsthereof, a hollow drum mounted on the shaft and comprising a pair ofmembers secured together and having out-turned peripheral flangesforming a periphe al groove, coil springs spaced apart, disposed in therespective members of the drum, connected thereto at their outer endsand connected at their inner ends to the shaft, a disk between the saidsprings and secured to the shaft, suspending cords attached. to andwound in the groove on the drum, and dogs pivoted to the drum andadapted to engage with oppositely disposed recesses in the shaft.

In testimony whereof I affix my signature in presence of two witnesses.

ELMER E. SCI-IELLENGER.

IVit-nesses S. It. MCDOUGALL, C. C. Penn.

Copies of this patent Commissioner of Patents,

Washington, D. C.

